/*
 * =====================================================================================
 *
 *       Filename:  ILetterProcess.h
 *
 *    Description:  抽象信件处理类
 *
 *        Version:  1.0
 *        Created:  01/11/2022 10:30:28 AM
 *       Revision:  none
 *       Compiler:  gcc
 *
 *         Author:  first_name last_name (fl), fl@my-company.com
 *        Company:  my-company
 *
 * =====================================================================================
 */

#pragma once
#include <iostream>
using std::string;
class ILetterProcess {
  public:
    ILetterProcess(void);
    virtual ~ ILetterProcess(void);
    virtual void WriteContext(string context) = 0;
    virtual void FillEnvelope(string address) = 0;
    virtual void LetterIntoEnvelope() = 0;
    virtual void SendLetter() = 0;
};
